Xenna-
prefix, slang ·Uncommon ·College level
Definitions
- 1 Synonym of ronna- (used before an official prefix existed). Symbol: X informal, morpheme
"The SI prefixes above are not the only extreme ones. Others such as xenno (x) (10⁻²⁷) and xenna (X) (10²⁷), or vendeko (v) (10⁻³³) and vendeka (V) (10³³) exist, and can help simplify the expression of extreme numbers."
Synonyms
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More examples"The SI prefixes above are not the only extreme ones. Others such as xenno (x) (10⁻²⁷) and xenna (X) (10²⁷), or vendeko (v) (10⁻³³) and vendeka (V) (10³³) exist, and can help simplify the expression of extreme numbers."
Etymology
From Ancient Greek ἐννέα (ennéa, “nine”), for the ninth order of 10³, and the letter x, as the third term in a series running backwards through the alphabet (after zetta- and yotta-). The final a conforms to the final vowel of the SI series from mega- upwards.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.